How to allow only numbers in textbox in reactjs?

Question

How to allow only numbers in textbox in reactjs using regular expression only?

Answer 1

I know you've asked for regular expression.
But here is a solution without regex if anyone wants.

  const handlePincode = (e) => {
    !isNaN(e.nativeEvent?.data) && setPincode(e.currentTarget.value);
  };

  return (
    

      
    
  );

The event.nativeEvent.data gives me the currently typed value, I can just validate that and set the event.currentTarget.value or just return it.